Nano surface engineering and remanufacture engineering are introduced, and the relationship between them is set forth. It points out the superiority of nano surface engineering to the traditional one, and reveals the advantages of remanufacture engineering. Taking some nano surface techniques as samples, such as nano-materials brush electroplating, nano-materials thermal spraying and nano-materials self-repairing antifriction additive technology, it shows the applications of nano surface engineering technology to remanufacturing mechanical parts.
Nickel and silicon dioxide nanoparticle composite coatings were prepared by brush plating with direct and pulse current.The surface morphology,microstructure,hardness and wear resistance of the coatings were investigated by scanning electron microscope(SEM),transmission electron microscope(TEM),mirohardness tester and ball-on-disk tribotester.The results show that the technical parameters,pulse current,duty circle and frequency,are of great influence on the growth of crystalline and properties of the coating.Compared with the coating plated with direct current,the coatings plated with pulse currents have smaller nanocrystalline,contain more SiO2 nanoparticle and have higher hardness and wear resistance.
Tan Jun1,Wu Di2,Yao Qiong3,Fan Wenchao1 1 National Key Laboratory for Remanufacturing,Academy of Armored Forces Engineering,Beijing 100072,China 2 Key Laboratory of Surface Engineering,Academy of Armored Forces Engineering,Beijing 100072,China 3 Xichang Satellite Launching Center,Xichang 615000,China
